*
   * @since 20.0 (varargs overload since 2.0)
   */
  public static void checkArgument(
      boolean expression, String errorMessageTemplate, char p1, char p2) {
    if (!expression) {
      throw new IllegalArgumentException(lenientFormat(errorMessageTemplate, p1, p2));
    }
  }

  /**

// as dynamic export is not supported.

package cgotest

/*
#include <stdint.h>
#include <dlfcn.h>
#cgo linux LDFLAGS: -ldl

extern uintptr_t dlopen4029(char*, int);
extern uintptr_t dlsym4029(uintptr_t, char*);
extern int dlclose4029(uintptr_t);

extern void call4029(uintptr_t arg);
*/
import "C"

import (
	"testing"
)

var callbacks int

//export IMPIsOpaque

  @Override
  Hasher putBoolean(boolean b);

  @CanIgnoreReturnValue
  @Override
  Hasher putChar(char c);

  /**
   * Equivalent to processing each {@code char} value in the {@code CharSequence}, in order. In
   * other words, no character encoding is performed; the low byte and high byte of each {@code
   * char} are hashed directly (in that order). The input must not be updated while this method is
   * in progress.
   *

protected char more() throws java.io.IOException, XmlPullParserExcepti; protected void ensurePC(int); protected void joinPC(); protected char requireInput(char, char[]) throws XmlPullParserExcepti, java.io.IOException; protected char requireNextS() throws XmlPullParserExcepti, java.io.IOException; protected char skipS(char) throws XmlPullParserExcepti, java.io.IOException; private static final void setName(char); private static final void setNameStart(char); protected boolean isNameStartChar(char); protected...

protected char more() throws java.io.IOException, XmlPullParserExcepti; protected void ensurePC(int); protected void joinPC(); protected char requireInput(char, char[]) throws XmlPullParserExcepti, java.io.IOException; protected char requireNextS() throws XmlPullParserExcepti, java.io.IOException; protected char skipS(char) throws XmlPullParserExcepti, java.io.IOException; private static final void setName(char); private static final void setNameStart(char); protected boolean isNameStartChar(char); protected...

protected char more() throws java.io.IOException, XmlPullParserExcepti; protected void ensurePC(int); protected void joinPC(); protected char requireInput(char, char[]) throws XmlPullParserExcepti, java.io.IOException; protected char requireNextS() throws XmlPullParserExcepti, java.io.IOException; protected char skipS(char) throws XmlPullParserExcepti, java.io.IOException; private static final void setName(char); private static final void setNameStart(char); protected boolean isNameStartChar(char); protected...

   */
  private static char[] growBuffer(char[] dest, int index, int size) {
    if (size < 0) { // overflow - should be OutOfMemoryError but GWT/j2cl don't support it
      throw new AssertionError("Cannot increase internal buffer any further");
    }
    char[] copy = new char[size];
    if (index > 0) {
      System.arraycopy(dest, 0, copy, 0, index);
    }

   */
  private static char[] growBuffer(char[] dest, int index, int size) {
    if (size < 0) { // overflow - should be OutOfMemoryError but GWT/j2cl don't support it
      throw new AssertionError("Cannot increase internal buffer any further");
    }
    char[] copy = new char[size];
    if (index > 0) {
      System.arraycopy(dest, 0, copy, 0, index);
    }

        }
    }


    @Override
    public String toString () {
        int len = this.length / 2 - ( this.zterm ? 1 : 0 );
        char[] ca = new char[len];
        for ( int i = 0; i < len; i++ ) {
            ca[ i ] = (char) this.buffer[ i ];
        }
        return new String(ca, 0, len);
    }

    // Exhaustively check all mappings (an int index avoids wrapping).
    for (int n = 0; n < replacementArray.length; ++n) {
      char c = (char) n;
      if (replacementArray[n] != null) {
        assertEquals(map.get(c), new String(replacementArray[n]));
      } else {
        assertFalse(map.containsKey(c));
      }
    }
  }